Source Draconic Codex
pg. 183Underworld dragons make their homes close to fault lines, active or dormant volcanoes, and regions with natural seismic activities. Locations with hot springs and fume holes are particularly popular, as they provide many alchemical and magical ingredients. Aside from vaults stuffed with treasure, underworld dragon lairs are also laboratories, dedicated to uncovering secrets in cultivation, elements, magic, and any other mysteries of interest. Several underworld dragon families have operated such labs for tens of thousands of years.
Dragon
Related Groups Dragon, Adamantine,
Dragon, Barrage,
Dragon, Bog,
Dragon, Brine,
Dragon, Cinder,
Dragon, Cloud,
Dragon, Conspirator,
Dragon, Coral,
Dragon, Crystal,
Dragon, Delight,
Dragon, Despair,
Dragon, Diabolic,
Dragon, Empyreal,
Dragon, Executor,
Dragon, Forest,
Dragon, Fortune,
Dragon, Horned,
Dragon, Magma,
Dragon, Mirage,
Dragon, Mocking,
Dragon, Oath,
Dragon, Omen,
Dragon, Phase,
Dragon, Requiem,
Dragon, Resurrection,
Dragon, Rime,
Dragon, Rune,
Dragon, Sage,
Dragon, Sea,
Dragon, Sky,
Dragon, Sovereign,
Dragon, Stormcrown,
Dragon, Time,
Dragon, Umbral,
Dragon, Vizier,
Dragon, Vorpal,
Dragon, Wailing,
Dragon, Whisper,
Dragon, Wish,
Dragonet,
WyrmwraithDragons come in myriad forms, with many having magical abilities or connections to magic. Some dragons draw greater power from magic than others, allowing them to manifest abilities or alter their physiques with prolonged exposure to magic. These dragons become more powerful as they age and strengthen their connections with their magical origins. Scholars debate the classification of these dragons, with some preferring the name magical dragons and others using traditional dragons due to their connection to specific magical traditions. Regardless of their names, these dragons share a number of characteristics: their ability to tap into magical energies, intensified might and cunning as they grow older, and an inclination to hoard vast amounts of treasure and wealth.
Draconic Spellcasters
Each dragon features a sidebar on spellcasting dragons of that type. To make a dragon spellcaster, remove the dragon's Draconic Frenzy and Draconic Momentum abilities, and give them the spells outlined in their sidebar. You can swap out any number of these with other spells, provided you keep the same number of spells for each rank. You might also want to increase the dragon's Intelligence, Wisdom, or Charisma modifier by 1 or 2 to reflect their mastery of magic.
Underworld Dragon
Underworld dragon spellcasters tend to cast the following spells.
Young Underworld Dragon
Prepared Arcane Spells DC 25, attack +17;
3rd earthbind,
fireball;
2nd knock,
revealing light,
resist energy;
1st carryall,
enfeeble,
force barrage;
Cantrips (3rd) caustic blast,
ignition,
read aura,
shield,
telekinetic handAdult Underworld Dragon
Prepared Arcane Spells DC 30, attack +22; As young underworld dragon, plus
5th scouting eye,
toxic cloud;
4th mirage,
peaceful bubble,
translocate;
3rd slow;
Cantrips (5th) caustic blast,
ignition,
read aura,
shield,
telekinetic handAncient Underworld Dragon
Prepared Arcane Spells DC 37, attack +29; As adult underworld dragon, plus
7th energy aegis,
fiery body,
mask of terror;
6th mislead,
spellwrack,
truesight;
5th mind probe;
Cantrips (7th) caustic blast,
ignition,
read aura,
shield,
telekinetic handUnderworld Archdragon
Prepared Arcane Spells DC 41, attack +33; As ancient underworld dragon, plus
10th cataclysm,
remake;
9th detonate magic,
metamorphosis;
Cantrips (10th) caustic blast,
ignition,
read aura,
shield,
telekinetic hand